Quoted from vid1900:If you wanted to keep the whole game, even the power cord, original; you could put a 220v outlet on the wall.
How cool would that be?
I have six Bally Wulff wall mounted slot machines. One was modified for the Global Gaming Expo (held in Las Vegas) Bally booth and has a 115 VAC transformer so that one is part of my pin circuits. The other five only have 220-240 volt transformers and the line cords for German/Europe (not UK) outlets. So, I installed a 230 volt outlet and have a German five outlet strip that the machines plug into.